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3x3 PM fused Coupler

The 3x3 780,980,1030,1064, 1310,1550nm fused PM fiber splitter comes with low excess loss, high extinction ratio, high optical power handling. It has wide range of applications such as optical amplifier, optical sensor, coherent optical system and optical testing equipment.

  • 3x3 Polarization Maintaining Fused Coupler

    780nm, 980nm, 1030nm, 1064nm, 1310nm, 1550nm

    GEZHI 3x3 monolithic FBT (fused biconical taper) PM fiber splitter support various wavelenth from 780nm~1550nm or customzied wavelength. The coupling ratio also could be selected. It features low excess loss, small size and high polarization extinction ratio. The 3x3 Polarization Maintaining fused Splitter (PM splitter) is widely used for optical sensors, optical gyro and fiber optical instrument.



    Low Insertion Loss

    High Return Loss

    High Extinction Ratio


    Coherent Communication

    Power Monitoring

    Fiber Optical Instrument



    Center Wavelengthnm7809801030106413101550
    Operating Wavelength Rangenm±10±10±10±10±10±10
    Max. Excess LossdB11110.80.8
    Extinction RatiodB≥17≥17≥17≥17≥17≥17
    Coupling Ratio Tolerance%±10
    Coupling Ratio%33/33/33
    Return LossdB55
    Max Power Handling (CW)W0.5, 1, or 2
    Tensile LoadN5
    Operating Temperature-5~+75
    Storage Temperature-40~+85
    Package Dimensionmmφ3x60mm(bare fiber) or φ4x70mm(900um tube)

    Note: 1. the PM fused coupler is both axis working, no axis can be blocked; default test extinction ratio is on the slow axis.

    2. Above specifications are for device without connector, If with connector, IL will be 0.3dB higher, return loss with be reduce 5dB and Extinction Ratio will reduce 2dB.

    3. For >10W high power applications, we will use heat sink package

    4. If there is pulse application, please be sure to inform us of pulse energy and peak power.







    Ordering Information  PMFBTC-XXXX-XX-XX-X-XX-XX-XX-XX-XX


    780=780nm; 980=980nm; 1030=1030nm; 1064=1064nm; 1310=1310nm; 1550=1550nm; S=Specify

    ②Configuration Type:


    ③Fiber Type:

    PM780; PM980; PM1060; PM1300; PM1550; S=Specify

    ④Power Handling:

    0L=0.5W; 01=1W; 02=2W

    ⑤Package Dimensions:

    S3=3.0x60mm; S4=4.0x70mm; S=Specify

    ⑥Pigtail Type:

    00=bare fiber; 09=900um loose tube

    ⑦Fiber Length:

    08=0.8m; 10=1m; S=Specify

    ⑧Connector Type:



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